Numerical approach for the derivation of interaction diagrams for piles under cyclic axial loading

Martin Achmus, Katrin Lemke, Khalid Abdel-Rahman, Yu Shu Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Piles used as foundation elements for support structures of offshore wind energy converters (OWECs) are subject to highly cyclic tension or compressive loading. It is known from a number of field and model tests that piles under cyclic axial loading can exhibit a significant reduction of capacity compared to the static loading case. Interaction diagrams have been developed, which give the number of load cycles leading to failure dependent on the mean load and the amplitude of the cyclic load portion, both related to the static capacity. However, such diagrams cannot account for soil conditions or pile geometry. A generally valid calculation approach is not yet available. In this paper a numerical simulation scheme applicable to sandy soil is presented, which allows developing interaction diagrams for arbitrary pile dimensions. The calculation results for two piles with different dimensions in sand under one-way cyclic loading in tension are presented and compared to existing interaction diagrams.

Original languageEnglish
Title of host publicationProceedings of the 25th International Ocean and Polar Engineering Conference, ISOPE 2015
PublisherInternational Society of Offshore and Polar Engineers
Pages755-760
Number of pages6
ISBN (Electronic)9781880653890
Publication statusPublished - 2015 Jan 1
Event25th International Ocean and Polar Engineering Conference, ISOPE 2015 - Kona, Big Island, United States
Duration: 2015 Jun 212015 Jun 26

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2015-January
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other25th International Ocean and Polar Engineering Conference, ISOPE 2015
CountryUnited States
CityKona, Big Island
Period15-06-2115-06-26

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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  • Cite this

    Achmus, M., Lemke, K., Abdel-Rahman, K., & Kuo, Y. S. (2015). Numerical approach for the derivation of interaction diagrams for piles under cyclic axial loading. In Proceedings of the 25th International Ocean and Polar Engineering Conference, ISOPE 2015 (pp. 755-760). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2015-January). International Society of Offshore and Polar Engineers.